New lift FST-2, Manual

Page: 111 / 194

5 Menu tree
5.3 MAIN MENU – Drive
FST-2_HB.EN12/05
109
Speed correction function After a successful calibration drive, the FST-2-Controller knows the
acceleration and deceleration characteristics for each drive speed. This
enables the controller to select the optimum drive speed for the distance to
be covered.
The parameter
Speed correction function
determines if the
maximum selected drive speed must be reached during each drive (travel
distance > acceleration di braking di crawling distance),
or if the drive has a speed correction function to optimise the drive curve
without reaching the maximum speed (travel distance > deceleration
di crawling distance).
Example: Travel from floor A to floor B (distance between floors:
2.6m/8ft 6")
- Nominal speed V2: Braking distance = 2m (6ft 6"), acceleration distance
= 2m (6ft 6")
- Intermediate speed V1: Braking distance = 1m (3ft 3"), acceleration
distance = 1m (3ft 3")
- Crawling distance = 0.05m (2")
Drive from A to B without speed correction:
Speed V1 is selected, because 2.6m (8ft 6") > 1m (3ft 3") + 1m (3ft 3") +
0.05m (2")
Drive from A to B with speed correction function enabled:
Speed V2 is selected, because 2.6m (8ft 6") > 2m (6ft 6")+ 0.05m (2")
Fig. 5.9 Drive without speed correction function